0 instructure-uploads.s3.amazonaws.com Read the lab 8 manual Watch https://youtu

Question

0 instructure-uploads.s3.amazonaws.com Read the lab 8 manual Watch https://youtu.be/aFiw6Lc6J2g?t 5m (If you are having trouble with the link you can search for: "Youtube Smarter Every Day 131" and all of the video is good, but we are focused on the material from the 5 minute mark onwards.) 1) What does a "hohmann transfer" have to do with the lab we will be doing? 2) What is the technical name for the average position of a collection of mass in a system? Postlab 7 3) Referring to the equipment of lab 7: a 10 g ball is fired at 6 nto a 280 g pendulum. What maximum angle will the pendulum swing to if the effective radius of the pendulum is 28 cm? Explain your solution.

Explanation / Answer

3) Applying momentum conservation for collision,

(10 x 6) + (280 x 0) = (10 + 280) v

v = 0.207 m/s ... this is the speed after the collision,

Applying energy conservation after that,

0 + m v^2 / 2 = m g h + 0

h = v^2 /2 g = 2.18 x 10^-3 m or 0.22 cm

h = L (1 - cos(theta))

0.22 = 28 (1 - cos(theta))

theta = 7.2 deg

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